Works great on stereocards Works great on books! Updated OWL 1 (Version 2) features a wider aperture in the back plate (increased from 14cm to 15.5cm) making it compatible with viewing larger format Stereocards and for use with iPads The OWL, designed by Queen Guitarist Brian May, is a unique, high ...

High Contrast Linear Polarizing Film High Transmission of Unpolarized Light from 400 – 700nm Excellent Extinction Ratio Available in Various Sheet Sizes for your Customized Use Great for experiments and learning Physics. The sheet is 0.2mm thick and 8.3" X 5.8" (21.0cm x 14.8cm), IMPORTANT(!) plea...

It is a plate of plaestico polarizacioen that can be used for various Polar experiments Perfect for preventing reflections of your dash cam; Can also be used to protect your dashboard from reflection Since it is a thin sheet, you can cut it with scissors; Easy to adjust by cutting to fit your dash c...

Makes the study of light and color fun and unforgettable Features slide mounted frames for easy handling during classroom experiments Ideal for experiments involving birefringance, light scattering and more... Polarized Sheet 12" X 17" 6mil Thick. Polarizing filters are used for experiments involvin...

High Contrast Linear Polarizing Film High Transmission of Unpolarized Light from 400 – 700nm Excellent Extinction Ratio Available in Various Sheet Sizes for your Customized Use Great for experiments and learning Physics. The sheet is 0.2mm thick and 16.5" X 11.70" (42cm x 29.90cm), IMPORTANT(!) pl...